Sensor Operational Check (Maintenance Mode 32); Sensor Operational Check - Brother MFC-8220 Service Manual

3.9

Sensor Operational Check (Maintenance mode 32)

< Function >
This function allows you to check whether the 14 sensors--document front sensor,
document rear sensor, cover sensor, hook sensor, toner sensor, regist front sensor, regist
rear sensor, cassette sensor, tray 1 paper sensor, tray 2 paper sensor, 2nd cassette
sensor*, 2nd regist sensor*, fixing sensor and paper eject sensor --operate correctly.
< Operating Procedure >
(1) Press the 3 and 2 keys in this order in the initial stage of the maintenance mode. The
machine beeps 1100 Hz and 400 Hz tones cyclically through the following volumes for
testing the speaker. To stop beeping, press the Menu button.
Low
OFF
High
If the sensing status are as listed below, the LCD will show the following:
"DFDRCVHK" and "TNMNRSCSP1P2C2R2" "PU PO" (which can be switched by
pressing the Start button for machines.)
Given below is the relationship between the LCD indication, sensor names and sensor
status.
LCD
DF
DR
CV
HK
TN
MN
RS
CS
P1
P2
C2
R2
FU
PO
(* These error indications will always be displayed in models not equipped with a 2nd paper
tray.)
(* These sensors are provided for models supporting a 2nd paper tray.)
400 Hz
Medium High
1100 Hz
Medium Low
Fig.7-10
Sensors
Document front sensor
Document rear sensor
Cover sensor
Hook sensor
Toner sensor
Manual feed sensor
(Regist front sensor)
Regist rear sensor
Cassette sensor
Tray 1 paper sensor
Tray 2 paper sensor
2nd cassette sensor*
2nd regist sensor*
Fixing sensor
Paper eject sensor
OFF
No document detected.
No document detected.
Front cover closed.
Off-hook
Toner detected.
No paper detected.
No paper detected.
No paper tray loaded.
Paper detected.
Paper detected.
No paper tray loaded.
No paper detected.
No paper detected.
No paper jam.
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SERVICE MANUAL
Sensing status
MFC-8220